A harrowing photo shows a blood-drenched toddler blitzed by Vladimir Putin's bombs - while drunk Russian soldiers shot dead a girl, ten, in front of her uncle.
Smoke rises into the night sky over the eastern city during an attack from Russian soldiers
As Russia's bloody invasion of Ukraine rages on, horror images of the innocent victims of war have been emerging - with children among the casualties.
A child injured during airstrikes in Sumy overnight
Anastasia Stoluk, 10, was shot dead by Russian troops in front of her uncle
A burning Russian pictured, in the Sumy region
Houses destroyed in airstrikes in Sumy, which killed more than a dozen people
Thousands of terrified Ukrainians are continuing to flee their homes and are becoming caught up in the escalating conflict as Russia pushes ahead on its slow, grinding and costly advance towards Kyiv.
In the besieged eastern city of Sumy, at least 18 people - including two children - were killed after airstrikes struck civilian areas overnight, with pictures showing smoke billowing over the night sky and houses reduced to piles of debris.
A shocking image of a bloodied tot injured in the attack has been released by Ukraine's parliament as civilians bare the the brunt of the bloodshed as they come under indiscriminate shelling and rocket fire.
In another attack, a ten-year-old Ukrainian girl was reportedly shot dead by "drunk" Russian soldiers in front of her uncle as troops blasted houses in the village of Shybene, around 40 miles from Kyiv.
Anastasia Stoluk, also known as Nastya, was buried in the family's back garden after soldiers banned her mum from visiting the cemetery after she was killed on February 28, her cousin Anya told The Times.
It's reported Russian troops started "shooting everywhere they could see" after a Ukrainian boy fired a gun in the air.
Anya's adoptive mother Vera Dmitrienko told the outlet: "(The Russian soldiers) looted all the stores, of course they got a lot of alcohol and got drunk and started shooting.
"They shot into Nastya's house, she was there with her uncle, and she died immediately."
A total of 406 Ukrainian civilians, including 27 children have died, since the conflict began, the UN Human Rights Agency has said - with almost 1,000 youngsters wounded.
And in embattled Mariupol, Zelenskyy said today a child has died from dehydration after spending several days without water, power and heating supplies after Russian troops struck the city with airstrikes.
The youngster's death could not immediately be confirmed independently.
Meanwhile, Ukraine has begun evacuating civilians from Sumy and from the town of Irpin near the capital Kyiv, Ukrainian officials said.
The evacuations began after Russian and Ukrainian officials agreed to establish "humanitarian corridors" to allow civilians out of some towns and cities besieged by Russian forces.
But Russia has been accused of shelling evacuation routes as it breaches humanitarian ceasefire for the fourth day.
According to Ukrainian armed forces, Russian forces have attacked a humanitarian corridor leading from Mariupol - preventing children, women, and elderly people from leaving city.
And in a further blow to refugees, the thousands attempting to flee the war-torn country are also having to battle freezing conditions as temperatures dip to -10C in Kharkiv and Kyiv overnight this week.
Because of relentless shelling by Russian troops, many still in the cities are without heating - with even Putin's soldiers struck by the cold as many are low on supplies caught up in the 40-mile convoy heading to the capital.
Ukraine on Monday rejected Russian proposals to evacuate Ukrainians to Russia or Belarus.
A young boy cries sitting on the shoulders of his brother as they search for their mother outside the train station in Lviv
A father cries as he says goodbye to his family at the central train station in Odessa
Evacuated children from the orphanage in Hulaipole at the train station in Lviv
Crowds of civilians gather at Kharkiv railway station to flee from the Russians
Western nations have condemned the war and slapped on more sanctions, but for stopped short of sending in troops or imposing a no fly zone.
Zelenskyy has repeatedly called for a no fly zone - but it is feared such a measure could draw the West into a hot war with Russia.
And the president warned that Putin will not stop with Ukraine.
He said: "We will come first. You will come second. Because the more this beast will eat, he wants more, more, and more."
Speaking in a televised address last night, Zelenskyy spoke about the harrowing pictures which have shocked the world.
It showed a family who had been blown up by the Russians as they tried to flee surrounded by their luggage.
"A man, a woman and two children. Right on the road. … when they were just trying to get out of town. To escape," he raged.
"The whole family. How many such families have died in Ukraine! We will not forgive. We will not forget.
"We will punish everyone who committed atrocities in this war. On our land. We will find every b*****d.
"Which shot at our cities, our people. Which bombed our land. Which launched rockets. Which gave the order and pressed 'start'.
"There will be no quiet place on this Earth for you. Except for the grave."
Peace talks continue to grind forward, with Ukrainian negotiating team saying there were small positives - but they had rejected Putin's ultimatums.
Unrepentant despot Putin issued a list of three key demands on Ukraine to end the war.
The Kremlin called for Ukraine to cease military action, change its constitution to become a neutral country, acknowledge Crimea as Russian territory and recognise the separatist republics of Luhansk and Donetsk.
Dmitry Peskov said that Russia had told Ukraine it was ready to halt its military action "in a moment" if Kyiv met its conditions.
And he insisted his country wasn't seeking any further territorial claims in Ukraine, after laying waste to cities across Ukraine and killing hundreds.
Kyiv and Kharkiv came under fresh bombardment overnight as murderous Putin hammered residential homes ahead of a feared second-wave offensive.
Missiles rained down after a day of true horror, which saw Russian troops fire on a nuclear reactor site and a mum and her two children killed as they desperately tried to flee during a ceasefire.
Air raid sirens rang out in the capital Kyiv in the early hours, while social media videos showed a number of explosions in second city Kharkiv.
One terrifying video, believed to have been filmed in Kharkiv, shows the moment a high-rise block of flats was blasted in a huge orange flash.
Another clip records the constant rumble of bombing in the distance.
And a third was claimed to show a Russian attack jet going down in flames.
Presidential adviser Oleksiy Arestovich said other areas under bombardment overnight included the outskirts of Kyiv, Chernihiv in the north, and Mykolaiv in the south
The new raids came hours after National Security Secretary Alexei Danilov warned to the nation expect a fresh onslaught.
"We have withstood the first, heaviest wave of attacks by Russian orcs.
"But the enemy is still dangerous as ready and united as possible."
Thousands of people are trapped in besieged Kharkiv, which has seen some of the heaviest bombings of the invasion so far.
Throughout the city, snowy streets are paved with glass blown from windows and debris torn from smashed buildings by missiles.